<!--

    Copyright © 2016-2022 The Thingsboard Authors

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.

-->
<section class="entity-version-diff-view" [ngClass]="{'content-ready': contentReady}"
         tb-fullscreen [fullscreen]="isFullscreen" (fullscreenChanged)="onFullscreenChanged($event)"
         [ngStyle]="isFullscreen || !contentReady ? {} : {height: preferredDiffHeight}"
         fxLayout="column">
  <mat-toolbar *ngIf="contentReady">
    <h2>{{ 'version-control.diff-entity-with-version' | translate: {versionName} }}</h2>
    <span fxFlex></span>
    <button mat-icon-button
            matTooltip="{{'version-control.previous-difference' | translate}}"
            matTooltipPosition="below"
            [disabled]="!hasPrevious"
            (click)="prevDifference($event)">
      <mat-icon>arrow_upward</mat-icon>
    </button>
    <button mat-icon-button
            matTooltip="{{'version-control.next-difference' | translate}}"
            matTooltipPosition="below"
            [disabled]="!hasNext"
            (click)="nextDifference($event)">
      <mat-icon>arrow_downward</mat-icon>
    </button>
    <mat-divider vertical></mat-divider>
    <span class="diff-count">{{ 'version-control.differences' | translate : {count: diffCount} }}</span>
    <mat-divider vertical></mat-divider>
    <button mat-stroked-button color="primary"
            #restoreVersionButton
            style="min-width: 150px"
            [disabled]="(isLoading$ | async)"
            (click)="toggleRestoreEntityVersion($event, restoreVersionButton)">
      <mat-icon>restore</mat-icon>
      {{'version-control.restore-version' | translate }}
    </button>
    <button mat-icon-button
            matTooltip="{{(isFullscreen ? 'fullscreen.exit' : 'fullscreen.expand') | translate}}"
            matTooltipPosition="below"
            (click)="isFullscreen = !isFullscreen">
      <mat-icon>{{ isFullscreen ? 'fullscreen_exit' : 'fullscreen' }}</mat-icon>
    </button>
  </mat-toolbar>
  <div fxLayout="row" *ngIf="contentReady">
    <div class="version-title" fxFlex>{{ 'version-control.current' | translate }}</div>
    <div style="width: 58px;"></div>
    <div class="version-title" fxFlex>{{ versionIdContent() }}</div>
  </div>
  <mat-spinner *ngIf="!contentReady" mode="indeterminate" diameter="80"></mat-spinner>
  <div fxFlex [fxShow]="contentReady" class="diff-viewer" #diffViewer></div>
  <div class="bottom-panel" *ngIf="contentReady" fxLayoutAlign="end center" fxLayoutGap="8px">
    <button mat-button color="primary"
            type="button"
            [disabled]="(isLoading$ | async)"
            (click)="close()" cdkFocusInitial>
      {{ 'action.close' | translate }}
    </button>
  </div>
</section>
